/*
 * To change this template, choose Tools | Templates
 * and open the template in the editor.
 */
package sgt.supermarket.controller.product;

import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import sgt.supermarket.entity.Product;
import sgt.supermarket.hibernatedao.HibernateDAOFactory;
import sgt.supermarket.util.Converter;
import sgt.supermarket.util.ServletExtensions;

/**
 *
 * @author Administrator
 */
public class EditProduct extends HttpServlet {

    /** 
     * Processes requests for both HTTP <code>GET</code> and <code>POST</code> methods.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    protected void processRequest(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        HibernateDAOFactory factory = new HibernateDAOFactory();
        long productId = ServletExtensions.getLongParam(request, "id");
        Product product = productId != 0 ? factory.getProductDAO().getById(productId) : new Product();

        if (request.getParameter("catid") != null) {
            product.setCategory(factory.getCategoryDAO().getById(Converter.toLong(request.getParameter("catid"))));
        } else if (productId == 0) {
            product.setCategory(factory.getCategoryDAO().getRoot());
        }

        if (request.getParameter("name") != null) {//an update command was initiated
            product.setName(ServletExtensions.getStringParam(request, "name"));
            product.setCode(ServletExtensions.getStringParam(request, "code"));
            product.setDescription(ServletExtensions.getStringParam(request, "description"));
            product.setProducer(ServletExtensions.getStringParam(request, "producer"));
            product.setUnit(ServletExtensions.getStringParam(request, "unit"));
            product.setCurrentSellingPrice(ServletExtensions.getDoubleParam(request, "currentSellingPrice"));
        }

        if (request.getMethod().equalsIgnoreCase("POST") && request.getParameter("save") != null) {
            factory.getProductDAO().save(product);
            response.sendRedirect("ListProducts?catid=" + product.getCategory().getAutoId());
        } else {
            String title = product.getAutoId() != 0 ? "Edit: " + product.getName() : "Create new product";
            request.setAttribute("title", title);
            request.setAttribute("product", product);
            request.getRequestDispatcher("/product.editProduct.tiles").forward(request, response);
        }
    }

    // <editor-fold defaultstate="collapsed" desc="HttpServlet methods. Click on the + sign on the left to edit the code.">
    /** 
     * Handles the HTTP <code>GET</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doGet(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Handles the HTTP <code>POST</code> method.
     * @param request servlet request
     * @param response servlet response
     * @throws ServletException if a servlet-specific error occurs
     * @throws IOException if an I/O error occurs
     */
    @Override
    protected void doPost(HttpServletRequest request, HttpServletResponse response)
            throws ServletException, IOException {
        processRequest(request, response);
    }

    /** 
     * Returns a short description of the servlet.
     * @return a String containing servlet description
     */
    @Override
    public String getServletInfo() {
        return "Short description";
    }// </editor-fold>
}
